I'm working on getting my heater working in the '55 Grumman. It's never been connected since I've owned the truck, and the tag on the heater box says "6V", so I've been reluctant to diagnose it. I was pleasantly surprised yesterday when I tore it down to see the motor (2.3 amp) was a fairly new 12V, and the heater core was nearly new.

Now to wire it. I have a period type heater switch that I would like to use. It has the light in the switch that comes on when power flows through it. The only markings on it I can locate are "ARK-L". It has two spades in the back; one for motor and the other for power, with a resister.

So, can I use this for my 12V heater? How can I tell if it is a 6V switch, or does it matter?
Thanks for your help.


~ Victor
1941 3/4-Ton Pickup (in process). Read about it in the DITY Gallery
1955 Grumman Kurbside "Doughboy" 235/3 on tree w/ OD
1957 3100 - moved on
1959 C4500 Short Bus "Magic Bus" - moved on
1959 G3800 1 Ton Dually "Chief" - moved on
1958 C4400 Viking "Thor" ~ moved on to fellow Bolter